CN113137372A - 负压型无密封立式衬氟离心泵 - Google Patents

负压型无密封立式衬氟离心泵 Download PDF

Info

Publication number
CN113137372A
CN113137372A CN202110584351.1A CN202110584351A CN113137372A CN 113137372 A CN113137372 A CN 113137372A CN 202110584351 A CN202110584351 A CN 202110584351A CN 113137372 A CN113137372 A CN 113137372A
Authority
CN
China
Prior art keywords
impeller
pump
negative pressure
pipe
pressure type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110584351.1A
Other languages
English (en)
Inventor
院军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zibo Luming Pump Industry Co ltd
Original Assignee
Zibo Luming Pump Industry Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zibo Luming Pump Industry Co ltd filed Critical Zibo Luming Pump Industry Co ltd
Priority to CN202110584351.1A priority Critical patent/CN113137372A/zh
Publication of CN113137372A publication Critical patent/CN113137372A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/02Selection of particular materials
    • F04D29/026Selection of particular materials especially adapted for liquid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4293Details of fluid inlet or outlet
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/06Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

本发明涉及一种离心泵,尤其涉及一种负压型无密封立式衬氟离心泵。本发明利用介质自重配合辅助叶轮避免介质中颗粒在密封侧的停留、聚集,同时防止介质由顶部泄露。本发明所述的负压型无密封立式衬氟离心泵包括:泵体,其内设有一叶轮安装腔以及与所述叶轮安装腔连通的排液腔;积液管,竖向连接于叶轮安装腔顶部;进液法兰管,与所述积液管连通;泵轴,竖向贯穿所述积液管,其上设有与所述积液管连接的转动增压件;叶轮,设置于所述叶轮安装腔内,与所述泵轴固定连接。

Description

负压型无密封立式衬氟离心泵
技术领域
本发明涉及一种离心泵,尤其涉及一种负压型无密封立式衬氟离心泵。
背景技术
离心泵是指靠叶轮旋转时产生的离心力来输送液体的泵。
现有技术中,如申请(专利)号:CN201811527918.6,提出一种环保免维护紧凑型立式离心泵包括泵体、泵轴、叶轮、泵盖、自润滑轴承一、轴套、自润滑轴承二;所述叶轮置于泵体、泵盖之间,并紧固于泵轴的末端上;在所述泵轴的下部外侧设有一轴套,所述自润滑轴承一固定于泵盖上,并与轴套形成间隙对磨;所述自润滑轴承二安装在所述泵体的内侧,所述泵轴安装在所述自润滑轴承二上;在所述泵盖的上设有一中间密封套,所述中间密封套位于轴套的外侧并与轴套之间留有空隙;所述泵轴与泵体上端的连接处设有机械密封。
其泵的进液口水平一般低于出液口水平,通过叶轮的抽吸,实现液体的输送,在该过程中,介质中的颗粒易在密封侧停留、聚集,对自润滑轴承、轴套及密封套造成磨损,进而易导致介质泄露。另外,若泵内介质一旦打空,进口介质不充足或进水压力不足,将造成汽蚀,严重影响泵的寿命。
发明内容
本发明要解决的技术问题在于提出一种负压型无密封立式衬氟离心泵,利用介质自重配合辅助叶轮避免介质中颗粒在密封侧的停留、聚集,同时防止介质由顶部泄露。
本发明所述的负压型无密封立式衬氟离心泵包括:泵体,其内设有一叶轮安装腔以及与所述叶轮安装腔连通的排液腔;积液管,竖向连接于叶轮安装腔顶部;进液法兰管,与所述积液管连通;泵轴,竖向贯穿所述积液管,其上设有与所述积液管连接的转动增压件;叶轮,设置于所述叶轮安装腔内,与所述泵轴固定连接。
叶轮的进液端向上。
优选的,所述转动增压件包括固定于积液管内壁的隔离环;以及依次套装在泵轴上的下轴套、辅助叶轮以及上轴套;所述隔离环内壁与辅助叶轮的轴盘间隙配合,所述下轴套一端与叶轮进液端抵接,所述上轴套上套装辅助叶轮封壳,所述辅助叶轮封壳外侧固定压盖,所述压盖与所述积液管固定连接,所述上轴套外侧的泵轴上固定主轴螺母。
优选的,所述辅助叶轮封壳下部设有一空腔,为辅助叶轮的叶片提供转动空间。
优选的,所述叶轮安装腔与所述积液管通过固定在泵体上的泵盖连接。
优选的,所述叶轮安装腔与所述积液管通过循环管连通。
循环管一端设置于叶轮安装腔底部,可防止颗粒在泵底部沉积。
优选的,所述泵盖上设有电机固定架。
优选的,所述泵体底部固定泵座。
本发明的有益效果是:(1)进液法兰管和积液管位于叶轮上方,在叶轮抽吸和和介质的重力作用下,介质向下流动进入叶轮进液端,介质中颗粒不会在密封侧停留、聚集,同时泵轴转动带动辅助叶轮转动,使位于辅助叶轮上部处于负压环境,阻止了介质从顶部泄露,达到无泄漏目的。
(2)积液管和排液腔均高于叶轮,可保证即使介质打空,在泵体内仍存在部分介质存留,另外通过循环管可将介质返回泵进口侧,保证进口介质不充足或进水压力不足时泵不会发生汽蚀,同时循环管还可防止颗粒在泵底部沉积。
(3)由于泵旋转部件无密封和自润滑轴承组件,与电机直连连接后,长期空载运行也不会损坏泵。
附图说明
图1是一种实施例结构示意图;
图中:1、泵体;2、叶轮安装腔;3、排液腔;4、积液管;5、进液法兰管;6、泵轴;7、叶轮;8、下轴套;9、辅助叶轮;10、上轴套;11、辅助叶轮封壳;12、压盖;13、主轴螺母;14、隔离环;15、空腔;16、泵盖;17、循环管;18、电机固定架;19、泵座;20、保护层。
具体实施方式
下面结合附图对本发明作进一步说明。
如图1所示,本发明所述的负压型无密封立式衬氟离心泵包括:泵体1,其内设有一叶轮安装腔2以及与所述叶轮安装腔2连通的排液腔3;积液管4,竖向连接于叶轮安装腔2顶部;进液法兰管5,与所述积液管4连通;泵轴6,竖向贯穿所述积液管4,其上设有与所述积液管4连接的转动增压件;叶轮7,设置于所述叶轮安装腔2内,与所述泵轴6固定连接。所述转动增压件包括固定于积液管4内壁的隔离环14;以及依次套装在泵轴6上的下轴套8、辅助叶轮9以及上轴套10;所述隔离环14内壁与辅助叶轮9的轴盘间隙配合,所述下轴套8一端与叶轮7进液端抵接,所述上轴套10上套装辅助叶轮封壳11,所述辅助叶轮封壳11外侧固定压盖12,所述压盖12与所述积液管4固定连接,所述上轴套10外侧的泵轴6上固定主轴螺母13。所述辅助叶轮封壳11下部设有一空腔15,为辅助叶轮9的叶片提供转动空间。所述叶轮安装腔2与所述积液管4通过固定在泵体1上的泵盖16连接。所述叶轮安装腔2与所述积液管4通过循环管17连通。所述泵盖16上设有电机固定架18。所述泵体1底部固定泵座19。
该实施例中,叶轮安装腔、排液腔、积液管、泵盖、进液法兰管内壁均内衬氟塑料等非金属材料保护层,可提高泵体的耐腐蚀性,叶轮的进液端向上。
工作时,由于进液法兰管和积液管位于叶轮上方,在叶轮抽吸和和介质的重力作用下,介质向下流动进入叶轮进液端,介质中颗粒不会在密封侧停留、聚集,同时泵轴转动带动辅助叶轮转动,使位于辅助叶轮上部处于负压环境,阻止了介质从顶部泄露。
当然,上述内容仅为本发明的较佳实施例,不能被认为用于限定对本发明的实施例范围。本发明也并不仅限于上述举例,本技术领域的普通技术人员在本发明的实质范围内所做出的均等变化与改进等,均应归属于本发明的专利涵盖范围内。

Claims (7)

1.一种负压型无密封立式衬氟离心泵,其特征在于包括:
泵体(1),其内设有一叶轮安装腔(2)以及与所述叶轮安装腔(2)连通的排液腔(3);
积液管(4),竖向连接于叶轮安装腔(2)顶部;
进液法兰管(5),与所述积液管(4)连通;
泵轴(6),竖向贯穿所述积液管(4),其上设有与所述积液管(4)连接的转动增压件;
叶轮(7),设置于所述叶轮安装腔(2)内,与所述泵轴(6)固定连接。
2.根据权利要求1所述的负压型无密封立式衬氟离心泵,其特征在于:所述转动增压件包括,
固定于积液管(4)内壁的隔离环(14);
以及依次套装在泵轴(6)上的下轴套(8)、辅助叶轮(9)以及上轴套(10);
所述隔离环(14)内壁与辅助叶轮(9)的轴盘间隙配合,所述下轴套(8)一端与叶轮(7)进液端抵接,所述上轴套(10)上套装辅助叶轮封壳(11),所述辅助叶轮封壳(11)外侧固定压盖(12),所述压盖(12)与所述积液管(4)固定连接,所述上轴套(10)外侧的泵轴(6)上固定主轴螺母(13)。
3.根据权利要求2所述的负压型无密封立式衬氟离心泵,其特征在于:所述辅助叶轮封壳(11)下部设有一空腔(15),为辅助叶轮(9)的叶片提供转动空间。
4.根据权利要求1或3所述的负压型无密封立式衬氟离心泵,其特征在于:所述叶轮安装腔(2)与所述积液管(4)通过固定在泵体(1)上的泵盖(16)连接。
5.根据权利要求4所述的负压型无密封立式衬氟离心泵,其特征在于:所述叶轮安装腔(2)与所述积液管(4)通过循环管(17)连通。
6.根据权利要求4或5所述的负压型无密封立式衬氟离心泵,其特征在于:所述泵盖(16)上设有电机固定架(18)。
7.根据权利要求6所述的负压型无密封立式衬氟离心泵,其特征在于:所述泵体(1)底部固定泵座(19)。
CN202110584351.1A 2021-05-27 2021-05-27 负压型无密封立式衬氟离心泵 Pending CN113137372A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110584351.1A CN113137372A (zh) 2021-05-27 2021-05-27 负压型无密封立式衬氟离心泵

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110584351.1A CN113137372A (zh) 2021-05-27 2021-05-27 负压型无密封立式衬氟离心泵

Publications (1)

Publication Number Publication Date
CN113137372A true CN113137372A (zh) 2021-07-20

Family

ID=76815771

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110584351.1A Pending CN113137372A (zh) 2021-05-27 2021-05-27 负压型无密封立式衬氟离心泵

Country Status (1)

Country Link
CN (1) CN113137372A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114251275A (zh) * 2021-12-23 2022-03-29 安徽瑞耐特机械设备有限公司 液下泵无密封装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2789473Y (zh) * 2004-12-27 2006-06-21 靖江市得萬泉泵阀制造有限公司 反吸无泄漏化工离心泵
FR2910081A1 (fr) * 2006-12-18 2008-06-20 Airfan Soc Par Actions Simplif Appareil de delivrance regulee d'un gaz,notamment appareil d'assistance respiratoire
CN203308723U (zh) * 2013-05-08 2013-11-27 苏义燕 自过滤排污离心泵
CN106438378A (zh) * 2016-12-09 2017-02-22 江苏大学 一种化学品船用立式二硫化碳泵
CN210509610U (zh) * 2019-08-15 2020-05-12 江苏永一泵业科技集团有限公司 一种新型立式节能自吸泵
CN214698354U (zh) * 2021-05-27 2021-11-12 淄博鲁明泵业有限公司 负压型无密封立式衬氟离心泵

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2789473Y (zh) * 2004-12-27 2006-06-21 靖江市得萬泉泵阀制造有限公司 反吸无泄漏化工离心泵
FR2910081A1 (fr) * 2006-12-18 2008-06-20 Airfan Soc Par Actions Simplif Appareil de delivrance regulee d'un gaz,notamment appareil d'assistance respiratoire
CN203308723U (zh) * 2013-05-08 2013-11-27 苏义燕 自过滤排污离心泵
CN106438378A (zh) * 2016-12-09 2017-02-22 江苏大学 一种化学品船用立式二硫化碳泵
CN210509610U (zh) * 2019-08-15 2020-05-12 江苏永一泵业科技集团有限公司 一种新型立式节能自吸泵
CN214698354U (zh) * 2021-05-27 2021-11-12 淄博鲁明泵业有限公司 负压型无密封立式衬氟离心泵

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114251275A (zh) * 2021-12-23 2022-03-29 安徽瑞耐特机械设备有限公司 液下泵无密封装置
CN114251275B (zh) * 2021-12-23 2024-02-13 安徽瑞耐特机械设备有限公司 液下泵无密封装置

Similar Documents

Publication Publication Date Title
CN214698354U (zh) 负压型无密封立式衬氟离心泵
JP2003529702A (ja) 軸封部を備えた水中用モータ
CN113137372A (zh) 负压型无密封立式衬氟离心泵
US2939400A (en) Submersible motor-pump assembly
CN219639114U (zh) 一种可空载可输送含颗粒和少量气体的三相流屏蔽泵
CN205243860U (zh) 一种双吸螺旋离心泵
CN215908063U (zh) 单级双吸卧式渣浆泵
CN214837327U (zh) 一种潜水泵的密封组件
CN213478678U (zh) 一种带连接体的逆循环屏蔽泵
JP7441035B2 (ja) マグネットポンプ
CN201170213Y (zh) 一种带漏液排泄管的立式自吸离心泵
CN206190539U (zh) 一种支架式简易密封液下泵
CN213235528U (zh) 一种深井泵的泵体结构
CN206000773U (zh) 离心泵密封结构
JPH0610877A (ja) 立軸プルアウト形自吸ポンプ
JPH0319920B2 (zh)
CN217712993U (zh) 潜水吸沙泵
CN214742102U (zh) 低流量低扬程立式轴流泵
CN212376952U (zh) 一种自吸式化工泵
CN218151648U (zh) 一种改进型无需水冷的离心泵
CN212867935U (zh) 一种jlp型单级单吸离心式纸浆泵
CN212867936U (zh) 一种ihf型氟塑料增强合金化工离心泵
CN219242220U (zh) 一种干油密封渣浆泵
CN217633084U (zh) 一种使用寿命长的浸入式循环泵
CN218407814U (zh) 一种可反向自冲洗的屏蔽泵结构

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 255200 village, Baita Town, Boshan District, Shandong, Zibo

Applicant after: ZIBO LUMING PUMP INDUSTRY Co.,Ltd.

Address before: 255200 Wudi village, Baita Town, Zichuan District, Zibo City, Shandong Province

Applicant before: ZIBO LUMING PUMP INDUSTRY Co.,Ltd.